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Electro-Harmonix Doctor Q Envelope Filter Guitar Effects Pedal


(2 reviews)


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MSRP: $67.90 $50.90 Save : $17.00 (25%)
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MSRP: $67.90 $50.90 Save : $17.00 (25%)
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The Electro-Harmonix Dr Q Envelope Filter is an envelope filter that specializes in generating percussive punchy filter sweeps for a rhythmic groove. Dynamic picking response produces super-funky wah-like tones. The Electro-Harmonix Dr Q Envelope Filter is the classic 1970's funk box and it's now available in a pedal board friendly Nano pocket-sized case.


  • True bypass
  • Simple one-knob range control
  • Switch-selectable bass boost
  • Responds to your personal picking style
  • Tough and compact die-cast chassis
  • 9-volt battery included
  • Optional US96DC-200BI power supply available

Order your Electro-Harmonix Dr Q Envelope Filter from Sam Ash Direct today with the security of our 45/60 day return/price protection policy, and be sure to take advantage of our fast, free shipping.

Things You Will Get:

  • Pedal Manual

Funky little pedal


Great Filter Pedal, easy to use/set/Up. Adds a great funk soun d when you need to provide a soundtrack for that retro feel.

Mike the Blind Bassman

Bandera, TX


If you need a boost of funk


Very easy to use when you want just a small amount of envelope filter, for the money. Excellent for an R&B Bass player,has that new age sound.


Brooklyn OHio


Doctor Q Envelope Filter Guitar Effects Pedal

4.5 2


Model Nano Dr Q

EHX Doctor Q Owner's Manual

Warranty Info:

Doctor Q Envelope Filter Guitar Effects Pedal

The manufacturer's warranty covers parts for one year and labor for one year from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.